06/24/2026
When outdoor humidity rises, basements and crawl spaces trap that moisture. Cold water lines create a temperature difference. Warm humid air touching cold pipe surfaces releases water droplets. This condensation often drips onto floors or collects around fittings. Many mistake it for a leak. The pattern follows weather. During foggy mornings and damp stretches like Hayward sees now, the effect becomes more visible. Recognizing this helps separate normal behavior from actual plumbing concerns.